Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4698839 | Mobile telephone switching office | David B. DeVaney, Donald Harper | 1987-10-06 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4698839 | Mobile telephone switching office | David B. DeVaney, Donald Harper | 1987-10-06 |